Comparable stake leader
STATE STREET CORP
SEC ownership of MANNKIND CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000899460.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- MNKD on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
STATE STREET CORP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
STATE STREET CORP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000899460
- Issuer location
- Danbury, CT
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of MANNKIND CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
STATE STREET CORP
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 6.1%
13D/G row: STATE STREET CORP
Showing 1-8 of 50 holder rows.
Quick read
STATE STREET CORP leads the comparable SEC ownership view at 6.1%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens STATE STREET CORP's linked filing trail.
Comparable ownership
Top 5
STATE STREET CORP
6.1%
Burkhard R. Blank
0.15%
Lauren M. Sabella
0.11%
BlackRock, Inc.
9.3%
VANGUARD CAPITAL MANAGEMENT LLC
4.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
6.1%
|
$47,456,047
18,683,483 shares
|
$0 | 31 Mar 2026 |
| Burkhard R. Blank |
3/4/5
EVP Chief Medical Officer
|
0.15%
|
$1,774,045
460,791 shares
|
— | 15 Jul 2025 |
| Lauren M. Sabella |
3/4/5
EVP Operations
|
0.11%
|
$1,346,887
349,841 shares
|
— | 15 Jul 2025 |
| BlackRock, Inc. |
13F
Company
|
9.3%
|
$70,072,446
28,600,998 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4.2%
|
$31,583,112
12,891,066 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
2.7%
|
$20,225,804
8,255,430 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
2.5%
|
$18,391,212
7,505,147 shares
|
— | 31 Mar 2026 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
2.1%
|
$15,657,759
6,390,922 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$3,107,477.
Buys
$0
Insiders: 0
Sells
$3,107,477
Insiders: 5
Net
-$3,107,477
Shares: -579,209
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 579,209
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 19,973 | $0 | $65,711 | -$65,711 |
| 3-6 | 0 | 134,120 | $0 | $820,890 | -$820,890 |
| 6-9 | 0 | 342,283 | $0 | $1,894,513 | -$1,894,513 |
| 9-12 | 0 | 82,833 | $0 | $326,362 | -$326,362 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 20 reporting-owner rows connected to MANNKIND CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
Michael Castagna
Net 12M change
-$3,107,476
Latest report
20 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael Castagna | Chief Executive Officer, Director | $5,992,974 | -$1,249,292 | -17% | Mixed | 11 May 2026 |
| Alejandro Galindo | EVP Endocrine Business Unit | $3,108,300 | Mixed | 22 Aug 2022 | ||
| Joseph Kocinsky | Chief Technology Officer | $2,980,932 | Mixed | 27 Aug 2022 | ||
| David Thomson | EVP Genl Counsel & Secretary | $2,718,523 | -$862,529 | -24% | Filing P/S | 11 May 2026 |
| Steven B. Binder | Director | $2,658,346 | -$352,679 | -12% | Filing P/S | 20 May 2026 |
| Stuart A. Tross | Chief People & Workpl Officer | $2,513,998 | -$548,528 | -18% | Median | 20 May 2026 |
| Sanjay R. Singh | EVP Technical Operations | $2,289,711 | -$94,448 | -4% | Filing P/S | 23 Mar 2026 |
| Burkhard R. Blank | EVP Chief Medical Officer | $1,774,045 | Mixed | 15 Jul 2025 | ||
| Ajay Ahuja | Chief Medical Officer | $1,708,734 | Mixed | 23 Mar 2026 | ||
| Lauren M. Sabella | EVP Operations | $1,346,887 | Mixed | 15 Jul 2025 | ||
| Dominic Marasco | Pres, Endocrine Business Unit | $843,402 | Median | 20 May 2026 | ||
| Christopher B. Prentiss | Chief Financial Officer | $830,363 | Median | 22 Apr 2026 | ||
| Anthony C. Hooper | Director | $772,220 | Mixed | 20 May 2026 | ||
| Ronald J. Consiglio | Director | $324,237 | Median | 20 May 2026 | ||
| Jennifer Grancio | Director | $271,217 | Median | 20 May 2026 | ||
| Sabrina Kay | Director | $262,230 | Median | 20 May 2026 | ||
| James Samuel Shannon | Director | $89,322 | Median | 20 May 2026 | ||
| Christine Mundkur | Director | $67,803 | Median | 20 May 2026 | ||
| Michael A. Friedman | Director | Mixed | 20 May 2026 | |||
| Kent Kresa | Director | Mixed | 15 May 2024 |
Recent insider transactions for MANNKIND CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Michael A. Friedman | MNKD | Restricted Stock Unit | Award | 82,781 | 82,781 | 20 May 2026 | Direct | |||
| Ronald J. Consiglio | MNKD | Common Stock, $0.01 Par Value | Award | 8.17% | 10,000 | 132,342 | 20 May 2026 | Direct | ||
| Ronald J. Consiglio | MNKD | Restricted Stock Unit | Award | 99,337 | 82,781 | 20 May 2026 | Direct | |||
| Steven B. Binder | MNKD | Restricted Stock Unit | Award | 82,781 | 82,781 | 20 May 2026 | Direct | |||
| Jennifer Grancio | MNKD | Restricted Stock Unit | Award | 82,781 | 82,781 | 20 May 2026 | Direct | |||
| Anthony C. Hooper | MNKD | Restricted Stock Unit | Award | 99,337 | 82,781 | 20 May 2026 | Direct | |||
| James Samuel Shannon | MNKD | Restricted Stock Unit | Award | 99,337 | 82,781 | 20 May 2026 | Direct | |||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Award | 3.42% | 33,898 | 1,026,122 | 20 May 2026 | Direct | ||
| Dominic Marasco | MNKD | Common Stock, $0.01 Par Value | Award | 2.52% | 8,474 | 344,246 | 20 May 2026 | Direct | ||
| Christine Mundkur | MNKD | Restricted Stock Unit | Award | 82,781 | 82,781 | 20 May 2026 | Direct | |||
| Sabrina Kay | MNKD | Restricted Stock Unit | Award | 82,781 | 82,781 | 20 May 2026 | Direct | |||
| Steven B. Binder | MNKD | Common Stock, $0.01 Par Value | Sale | -2.05% | $55,733 | $3.29 | -16,940 | 808,008 | 12 May 2026 | Direct |
| David Thomson | MNKD | Common Stock, $0.01 Par Value | Sale | -0.37% | $9,979 | $3.29 | -3,033 | 826,299 | 12 May 2026 | Direct |
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Tax liability | -0.81% | -8,073 | 992,224 | 11 May 2026 | Direct | ||
| Steven B. Binder | MNKD | Common Stock, $0.01 Par Value | Tax liability | -0.67% | -5,560 | 824,948 | 11 May 2026 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Tax liability | -1.41% | -34,957 | 2,442,310 | 11 May 2026 | Direct | ||
| David Thomson | MNKD | Common Stock, $0.01 Par Value | Tax liability | -1.47% | -12,387 | 829,332 | 11 May 2026 | Direct | ||
| Christopher B. Prentiss | MNKD | Common Stock, $0.01 Par Value | Tax liability | -3.49% | -12,267 | 338,924 | 22 Apr 2026 | Direct | ||
| Christopher B. Prentiss | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Christopher B. Prentiss | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Michael Castagna | MNKD | Employee Stock Option (right to buy) | Award | 782,000 | 782,000 | 23 Mar 2026 | Direct | |||
| Michael Castagna | MNKD | Performance Restricted Stock Unit | Award | 796,000 | 796,000 | 23 Mar 2026 | Direct | |||
| Sanjay R. Singh | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Sanjay R. Singh | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Ajay Ahuja | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Ajay Ahuja | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| Stuart A. Tross | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| Stuart A. Tross | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| David Thomson | MNKD | Employee Stock Option (right to buy) | Award | 217,000 | 217,000 | 23 Mar 2026 | Direct | |||
| David Thomson | MNKD | Performance Restricted Stock Unit | Award | 221,000 | 221,000 | 23 Mar 2026 | Direct | |||
| James Samuel Shannon | MNKD | Common Stock, $0.01 Par Value | Award | 22.8% | 12,000 | 64,635 | 01 Mar 2026 | Direct | ||
| Anthony C. Hooper | MNKD | Common Stock, $0.01 Par Value | Award | 17.4% | 35,000 | 236,153 | 01 Mar 2026 | Direct | ||
| Christopher B. Prentiss | MNKD | Common Stock, $0.01 Par Value | Award | 1.45% | 5,000 | 348,854 | 01 Mar 2026 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Award | 0.62% | 15,290 | 2,475,911 | 01 Mar 2026 | Direct | ||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Award | 1.55% | 15,290 | 1,000,297 | 01 Mar 2026 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (right to buy) | Award | 145,275 | 57,750 | 26 Feb 2026 | Direct | |||
| Steven B. Binder | MNKD | Employee Stock Option (right to buy) | Award | 45,025 | 45,025 | 26 Feb 2026 | Direct | |||
| David Thomson | MNKD | Employee Stock Option (right to buy) | Award | 57,525 | 37,525 | 26 Feb 2026 | Direct | |||
| Stuart A. Tross | MNKD | Employee Stock Option (right to buy) | Award | 48,143 | 28,143 | 26 Feb 2026 | Direct | |||
| Stuart A. Tross | MNKD | Common Stock, $0.01 Par Value | Sale | -4.55% | $297,548 | $6.33 | -47,006 | 985,007 | 08 Jan 2026 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Gift | -1.76% | -44,171 | 2,460,621 | 24 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -2.56% | $395,482 | $6.01 | -65,804 | 2,504,792 | 17 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 2.63% | 65,804 | 2,570,596 | 17 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -65,804 | 0 | 17 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -0.84% | $127,860 | $6.00 | -21,310 | 2,504,792 | 16 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 0.85% | 21,310 | 2,526,102 | 16 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -57.4% | -21,310 | 15,804 | 16 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Sale | -0.82% | $124,836 | $6.00 | -20,806 | 2,504,792 | 12 Dec 2025 | Direct |
| Michael Castagna | MNKD | Common Stock, $0.01 Par Value | Options Exercise | 0.83% | 20,806 | 2,525,598 | 12 Dec 2025 | Direct | ||
| Michael Castagna | MNKD | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -20,806 | 0 | 12 Dec 2025 | Direct |
* marks a reported price that did not pass the local price check.